670435 has 4 divisors (see below), whose sum is σ = 804528. Its totient is φ = 536344.

The previous prime is 670409. The next prime is 670447. The reversal of 670435 is 534076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670435 - 2⁹ = 669923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67039 + ... + 67048.

It is an arithmetic number, because the mean of its divisors is an integer number (201132).

2⁶⁷⁰⁴³⁵ is an apocalyptic number.

670435 is a deficient number, since it is larger than the sum of its proper divisors (134093).

670435 is a wasteful number, since it uses less digits than its factorization.

670435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134092.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 670435 is about 818.8009526130. The cubic root of 670435 is about 87.5223344347.

The spelling of 670435 in words is "six hundred seventy thousand, four hundred thirty-five".